Feature: 1. The separate hydraulic cylinder is comes with threaded ZG3/8in connector and dust cap, easy to use. 2. Made of fine manufacturing, the lacquered exterior has corrosion resistance and rust resistance. 3. The design of the hollow piston with automatic oil return can be used as pulling force or thrust. 4. Suitable for use in various small spaces, fast, convenient, and can be used in multiple angles. 5. For electric power, shipbuilding, petroleum, chemical, construction and other industries. Specification: Item Type: Hydraulic Lifting CylinderMaximum Load: 20T Model: RCH-2050 Piston Diameter: Approx. 54mm / 2.1in Hole Diameter: Approx. 27mm / 1.1in Outer Diameter: Approx. 100mm / 3.9in Stroke: Approx. 50mm / 2in Material: 45 steel Body Height: Approx. 160mm / 6.3in Uses: Widely used in power, shipbuilding, petroleum, chemical, construction and other industries. Package List: 1 x Hydraulic Cylinder1 x User Manual